Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof

a technology of information recording and recording medium, which is applied in the field of information recording medium, can solve the problems of excessive loss of information, damage to information recorded in adjacent grooves, and excessive cross erase phenomenon, and achieve the effect of reducing cross erase and increasing density
US6982127B2Inactive Publication Date: 2006-01-03JVC KENWOOD CORP A CORP OF JAPAN
7 Cites 50 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
JVC KENWOOD CORP A CORP OF JAPAN
Publication Date
2006-01-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

An information recording medium comprises a substrate, a second recording layer, a second light transmitting layer, a first recording layer for recording different information from that to be recorded in the second recording layer, and a first light transmitting layer. The second recording layer is formed with a continuous second microscopic pattern of grooves. The first recording layer is formed with a continuous first microscopic pattern of grooves that is different from the second microscopic pattern. Both sidewalls of raised portions of the first and second microscopic patterns are formed with wobbling so as to be parallel with each other. Auxiliary information and a reference clock is recorded on these sidewalls alternately and continuously.
Need to check novelty before this filing date? Find Prior Art

Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to an information recording medium that is particularly used for recording information optically, and apparatuses for reproducing information recorded in the information recording medium with making the information recording medium move relatively, for recording information in the information recording medium with making the information recording medium move relatively, and for recording and reproducing information in the recording medium with making the information recording medium move relatively, and methods for reproducing the information recording medium, for recording the information recording medium, and for recording and reproducing the information recording medium.

[0003] 2. Description of the Related Art

[0004] Until now, there existed a system used for reading out information from an information recording medium while the information recording medium is made relatively move. In order...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More